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Flavor interferometry in Reissner-Nordström background

Jean Alexandre and Emilio Meryn

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Phys. Rev. D 112, 076025 – Published 21 October, 2025

DOI: https://doi.org/10.1103/5syc-2w7k

Abstract

We derive the phase acquired by a neutral scalar particle propagating along Reissner-Nordström geodesics. Considering two flavors propagating on different trajectories which intersect, we plot the interference pattern induced by gravitational lensing from the charged compact object. Although the effect of the charge is subdominant in the metric, it proves to be significant in the phase, and shifts the interference pattern, compared to the Schwarzschild case. This pattern is characterized by two oscillation lengths which, if known, would allow the determination of both eigenmasses independently.

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Phys. Rev. D 112, 076025– Published 21 October, 2025
  • Received 14 August 2025
  • Accepted 7 October 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

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